diff options
| author | Miles Bader <miles@gnu.org> | 1995-07-03 17:10:52 +0000 |
|---|---|---|
| committer | Miles Bader <miles@gnu.org> | 1995-07-03 17:10:52 +0000 |
| commit | d00517a960164b76dd4e174df81157e397fcd909 (patch) | |
| tree | ebe8f98fa23cf39241f21394c12e752ba942ac90 | |
| parent | 66fb03a95ee85c2207c63eb1818bf77bd1138676 (diff) | |
Formerly io.c.~4~
| -rw-r--r-- | pflocal/io.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/pflocal/io.c b/pflocal/io.c index 9dbdecce..33b171d8 100644 --- a/pflocal/io.c +++ b/pflocal/io.c @@ -35,15 +35,12 @@ S_io_read (struct sock_user *user, return EOPNOTSUPP; err = sock_aquire_read_pipe (user->sock, &pipe); - if (!err && pipe) + if (!err) { err = pipe_read (pipe, sock->flags & SOCK_NONBLOCK, data, data_len, amount); pipe_release (pipe); } - else - /* Return EOF [harmless if there's an error]. */ - *data_len = 0; return err; } @@ -86,7 +83,7 @@ S_interrupt_operation (struct sock_user *user) /* Interrupt pending reads on this socket. We don't bother with writes since they never block. */ - if (sock_aquire_read_pipe (user->sock, &pipe) == 0 && pipe != NULL) + if (sock_aquire_read_pipe (user->sock, &pipe) == 0) { /* Indicate to currently waiting threads they've been interrupted. */ pipe->interrupt_seq_num++; @@ -111,13 +108,10 @@ S_io_readable (struct sock_user *user, mach_msg_type_number_t *amount) err = sock_aquire_read_pipe (user->sock, &pipe); if (!err) - if (pipe == NULL) - *amount = 0; - else - { - *amount = pipe_readable (user->sock->read_pipe); - pipe_release (pipe); - } + { + *amount = pipe_readable (user->sock->read_pipe); + pipe_release (pipe); + } return err; } @@ -207,8 +201,8 @@ S_io_select (struct sock_user *user, int *select_type, int *id_tag) if (*select_type & SELECT_READ) { struct pipe *pipe = sock->read_pipe; - if (pipe) - pipe_aquire (pipe); + + pipe_aquire (pipe); /* We unlock SOCK here, as it's not subsequently used, and we might go to sleep waiting for readable data. */ |